Checking the hash/signature of cached providers using the Terragrunt Provider Cache server

[levkohimins]

Describe the bug

When implementing the Terragrunt Provider Cache server, to speed up terraform init, it was decided to use TF_PLUGIN_CACHE_MAY_BREAK_DEPENDENCY_LOCK_FILE, which allows you to create a lock file super quickly, but this has its drawback, it completely trusts the files from the cache and does not check their cache and signature.

The discussion started from #3001

To Reproduce
terragrunt run-all apply --terragrunt-provider-cache

Expected behavior
Every time Terraform requests a provider, Terragrunt Provider Cache should download the hash and signature from the remote registry to check and ensure that the cached provider is not corrupted.

Versions

• Terragrunt version: v0.56.4